建構鋰電池正極材料技術選擇模式之研究

Abstract

選擇適當的技術有助於企業作出更具競爭力的產品和服務，或是開發更有效的流程，為企業創造全新的解決方案，以利企業在競爭激烈的商業環境中取得競爭優勢。但先進技術多樣且日益複雜，使得企業在技術選擇的決策上更加的困難。電動汽車的普及已勢不可擋，因此發展具有高安全性、高能量密度、高功率與低價格的動力電池以應用於電動汽車已成為鋰電池重要的發展方向，而正極材料技術正是重要關鍵。 本文提出適用於動力鋰電池正極材料技術選擇決策之四項構面與十二項準則，經過有系統化的分析步驟，將歸納得出的多個構面準則轉化為可量化的指標，並建立一套決策模式，期作為幫助企業選擇下一世代動力鋰離子電池正極材料技術的依據，並用此選擇模式評估當前最熱門的三種正極材料，包含錳酸鋰、磷酸鐵鋰及三元材料。在技術選擇決策方法上則先從文獻與專家訪談中決定出關鍵評估正極材料的構面與準則，並應用DEMATEL分析各構面與準則間相互的影響因素及其影響方向與關聯程度，再以DANP建立模型結構與重要性程度，最後透過VIKOR衡量各方案的績效。

Several issues confronted the decision makers in the electric vehicles (EV) industry that uses lithium batteries. These include the lithium battery safety, the cycle time, the power density, the energy density and the cost, etc. Further, the choice of the cathode material is the prime factor that affects all these afore-mentioned issues. However, the selection of an appropriate technology in cathode materials for power battery remains an unsettled issue among the practitioners and academia. This thesis attempts to establish a framework towards the appropriate selection in cathode materials for business firms in the EV field. Based on the results from expert interviews and reference documents, we first constructed a selection framework that consists of four dimensions and twelve criteria. We then conducted a survey based on the selection framework and estimated the coefficients on each of the dimensions and criteria of the decision model.